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clocksource/drivers/dw_apb_timer: Inline apbt_readl and apbt_writel 

It seems gcc can automatically inline apbt_writel() for us, but
apbt_real isn't inlined. This patch makes them inline to get a trivial
performance improvement: 4096 rounds of __apbt_read_clocksource() call
spend time on Marvell BG4CT platform:

 before the patch 1275240ns on average
 after the patch 1263240ns on average

so we get 1% performance improvement.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Jisheng Zhang 2015-11-26 00:01:52 +08:00 committed by Daniel Lezcano
parent 39d3611f2d
commit 520ddad4e5
1 changed files with 3 additions and 3 deletions
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6
drivers/clocksource/dw_apb_timer.c
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@ -49,13 +49,13 @@ clocksource_to_dw_apb_clocksource(struct clocksource *cs)
return container_of(cs, struct dw_apb_clocksource, cs);
}
static u32 apbt_readl(struct dw_apb_timer *timer, unsigned long offs)
static inline u32 apbt_readl(struct dw_apb_timer *timer, unsigned long offs)
{
return readl(timer->base + offs);
}
static void apbt_writel(struct dw_apb_timer *timer, u32 val,
unsigned long offs)
static inline void apbt_writel(struct dw_apb_timer *timer, u32 val,
unsigned long offs)
{
writel(val, timer->base + offs);
}